Gigabit Ethernet Splitter TP-LINK EH310 — 1 to 3 ports, passive network splitter

TP-LINK EH310 Gigabit Ethernet Splitter is a compact 1-to-3 passive network splitter that lets a single Ethernet connection be shared among up to three devices. The device supports Gigabit speeds (10/100/1000 Mbps) on each port and uses standard Ethernet protocols (IEEE 802.3/802.3u/802.3ab). Its plug-and-play design requires no software or configuration, making it suitable for situations where additional cabling or an extra switch is not available. The splitter accepts one Gigabit RJ45 input and provides three Gigabit RJ45 outputs, with link/activity LEDs for each port and an unmanaged operation model.

Advantages

The TP-LINK EH310 provides a simple way to expand a wired network without configuration or management. It supports full- and half-duplex transmission with auto-negotiation and Auto MDI/MDIX, enabling compatibility with a wide range of Ethernet devices such as switches, PCs and IP cameras. Its compact chassis and passive design make it easy to install where space is limited; the unit is powered via USB-C or an included DC adapter and includes line-status LEDs for basic diagnostics.

Suitable for

• Extending a single Ethernet outlet to supply multiple devices in a home or small office
• Connecting IP cameras, networked printers or media players where additional cabling is not feasible
• Temporary setups or testing environments that require multiple wired endpoints from one port
• Environments where a simple unmanaged, plug-and-play solution is preferred over a managed switch

Key specifications

• Ports: 1× Gigabit RJ45 input, 3× Gigabit RJ45 outputs
• Transmission speeds: 10/100/1000 Mbps per port
• Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Transmission method: Full duplex and half duplex; Store-and-Forward
• Auto features: Auto-Negotiation and Auto MDI/MDIX
• Power: USB-C or DC power adapter (included)
• Indicators: Link/activity LED for each port
• Operating temperature: 0°C to 40°C; operating humidity 10%–90% RH
• Maximum cable length: up to 100 m using Cat5e or higher
• Dimensions (approx.): 75 × 50 × 25 mm

How to use

Connect the incoming Ethernet cable from your wall outlet or upstream switch to the RJ45 input labeled “In”. Connect up to three devices to the RJ45 output ports labeled “Out” using Cat5e or better cables. Plug in the supplied USB-C or DC power adapter and confirm the link/activity LEDs are lit to verify connectivity. No software or configuration is required; the splitter operates as an unmanaged passive device and relies on the connected devices to negotiate link speed and duplex settings.

Usage recommendations

For reliable Gigabit performance, use Cat5e or higher Ethernet cables and keep individual cable runs within 100 m. Place the splitter in a ventilated area to ensure adequate heat dissipation and avoid exposure to extreme temperatures or moisture. When multiple devices actively transmit large volumes of data simultaneously, consider using a powered Ethernet switch for full switching performance and better traffic handling.